Re: Debugging GNUstep app

[David Chisnall]

On 4 Dec 2009, at 10:41, Andreas Höschler wrote:

> Hi all,
>
> my app core dumps under certain circumstances. When I open the core  
> file with gdb and enter
>
>         bt
>
> I only see that the run loop catched an exception. This does not  
> help me a bit. I guess the exception was raised in a subthread.

It shouldn't be.  Exceptions should be caught in the thread that they  
are thrown.  I'm not sure how they'd be moved between threads.  If you  
want to see where an exception is thrown, add a breakpoint on - 
[NSException raise].

> Any chance I can get a backtrace from a subthread in gdb? This might  
> be a dummy/newbie question but I have never done that and figured  
> out how this would work. Is that possible?

If it is related to threads, then 'info threads' will list the  
currently running threads and then thread {number} will switch gdb to  
showing the numbered thread.

David

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